How to change the default line and fill colors in draw ?

I'm continually annoyed every time I start draw that it defaults to a grey as the ,line colour and blue as the fill colour. Open office defaulted to black lines which is much more often what one wants.

How can I change this so that the default on start-up is black and what was the philosophy behind making the default grey ?

Thanks for this answer, which certainly solves the problem in Draw. I am quite new to Draw, but the same issue has long bugged me in Writer. I fondly hoped that fixing the Draw defaults would apply to Writer as well, but alas it is not so. Is there an equivalent way of fixing the drawing object defaults in Writer?

Thanks! Looks like this will work in calc as well. It has bugged me that the default colors are not persistent and I have to keep resetting them each time I start it. This won't make them persistent (from session to session), as I think they should but, but does make things a little bit better.

(This is not an answer, I know. But I didn't want to create a duplicate topic.)

No answer so far?

Despite the fact that I don't need it urgently: I cannot believe that the colours and other style settings for graphical ('Drawing') objects are hard coded. Editing the 'Default' style for a graphical object will only be valid for the actual document. For graphical objects to generate in a Writer document there aren't even styles offered.

There should be a way to edit the "hidden default templates". Did someone succeed finding it since the last answers here?

I know this is old, but I am leaving it here JFTR, it may be useful for someone else:

Go to Format/Character, there you can change the default font.

Go to Format/Area, there you can change colors for shapes.

There are also submenus in Format for lines and so on.

If you don't plan to print it and just want to make it black and white, that for me is the best style for flowcharts for example, instead of changing colors under Format/... you can just select View/Color/Grayscale/Black & White, though this will not affect the printer output nor the PDF export either, that has their own color control settings.

I have not been able to solve this problem using defaults. However, for a workaround, what I do is modify one line (or box or some other object) so that it fits my preferences, and then copy it whenever I need to use a new line. This keeps the arrow head, font size, line width etc. settings.